{% extends 'layout/basic.html' %}
{% load static %}
{% block title %}welcome home{% endblock %}
{% block css %}
    <link rel="stylesheet" href="">
    <style type="text/css">
        html, body {
            height: 100%;
            margin: 0;
        }

        body {
            background-color: #fffffc;
            margin: 0;
            font-family: Helvetica, sans-serif;;
            overflow: hidden;
        }

        a {
            color: #ffffff;
        }

        .container-fluid {
            padding-left: 0;
            padding-right: 0;
        }

        #info {
            position: absolute;
            width: 100%;
            color: #ffffff;
            padding: 5px;
            /*font-family: Monospace;*/
            font-family: verdana, Tahoma, Arial, Hei, "Microsoft Yahei", SimHei;
            font-size: 13px;
            font-weight: bold;
            text-align: center;
            z-index: 1;
        }

        #menu {
            position: absolute;
            bottom: 20px;
            width: 100%;
            text-align: center;
            font-family: verdana, Tahoma, Arial, Hei, "Microsoft Yahei", SimHei;
        }

        .element {
            width: 120px;
            height: 160px;
            box-shadow: 0px 0px 12px rgba(0, 255, 255, 0.5);
            border: 1px solid rgba(127, 255, 255, 0.25);
            text-align: center;
            cursor: default;
        }

        .element:hover {
            box-shadow: 0px 0px 12px rgba(0, 255, 255, 0.75);
            border: 1px solid rgba(127, 255, 255, 0.75);
        }

        .element .number {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 12px;
            color: rgba(127, 255, 255, 0.75);
        }

        .element .symbol {
            position: absolute;
            top: 40px;
            left: 0px;
            right: 0px;
            font-size: 60px;
            font-weight: bold;
            color: rgba(255, 255, 255, 0.75);
            text-shadow: 0 0 10px rgba(0, 255, 255, 0.95);
        }

        .element .details {
            position: absolute;
            bottom: 15px;
            left: 0px;
            right: 0px;
            font-size: 12px;
            color: rgba(127, 255, 255, 0.75);
        }

        button {
            color: rgba(127, 255, 255, 0.75);
            background: transparent;
            outline: 1px solid rgba(127, 255, 255, 0.75);
            border: 0px;
            padding: 5px 10px;
            cursor: pointer;
        }

        button:hover {
            background-color: rgba(0, 255, 255, 0.5);
        }

        button:active {
            color: #000000;
            background-color: rgba(0, 255, 255, 0.75);
        }
    </style>
{% endblock %}
{% block content %}
    <div class="container-fluid clearfix">
        <div id="container"></div>
        <!--<div id="info">3D-元素周期表</div>-->
        <div id="info">
            <button id="table">表面</button>
            <button id="sphere">球体</button>
            <button id="helix">螺旋</button>
            <button id="grid">网格</button>
        </div>
    </div>
{% endblock %}
{% block js %}
    <script src="{% static 'plugins/3D_Animation/js/three.min.js' %}"></script>
    <script src="{% static 'plugins/3D_Animation/js/tween.min.js' %}"></script>
    <script src="{% static 'plugins/3D_Animation/js/TrackballControls.js' %}"></script>
    <script src="{% static 'plugins/3D_Animation/js/CSS3DRenderer.js' %}"></script>
    <script type="text/javascript">

        var table = [
            "H", "Hydrogen", "1.00794", 1, 1,
            "He", "Helium", "4.002602", 18, 1,
            "Li", "Lithium", "#6.941", 1, 2,
            "Be", "Beryllium", "9.012182", 2, 2,
            "B", "Boron", "#10.811", 13, 2,
            "C", "Carbon", "#12.0107", 14, 2,
            "N", "Nitrogen", "#14.0067", 15, 2,
            "O", "Oxygen", "#15.9994", 16, 2,
            "F", "Fluorine", "18.9984032", 17, 2,
            "Ne", "Neon", "#20.1797", 18, 2,
            "Na", "Sodium", "22.98976...", 1, 3,
            "Mg", "Magnesium", "#24.305", 2, 3,
            "Al", "Aluminium", "26.9815386", 13, 3,
            "Si", "Silicon", "#28.0855", 14, 3,
            "P", "Phosphorus", "30.973762", 15, 3,
            "S", "Sulfur", "#32.065", 16, 3,
            "Cl", "Chlorine", "#35.453", 17, 3,
            "Ar", "Argon", "#39.948", 18, 3,
            "K", "Potassium", "#39.948", 1, 4,
            "Ca", "Calcium", "#40.078", 2, 4,
            "Sc", "Scandium", "44.955912", 3, 4,
            "Ti", "Titanium", "#47.867", 4, 4,
            "V", "Vanadium", "#50.9415", 5, 4,
            "Cr", "Chromium", "#51.9961", 6, 4,
            "Mn", "Manganese", "54.938045", 7, 4,
            "Fe", "Iron", "#55.845", 8, 4,
            "Co", "Cobalt", "58.933195", 9, 4,
            "Ni", "Nickel", "#58.6934", 10, 4,
            "Cu", "Copper", "#63.546", 11, 4,
            "Zn", "Zinc", "#65.38", 12, 4,
            "Ga", "Gallium", "#69.723", 13, 4,
            "Ge", "Germanium", "#72.63", 14, 4,
            "As", "Arsenic", "#74.9216", 15, 4,
            "Se", "Selenium", "#78.96", 16, 4,
            "Br", "Bromine", "#79.904", 17, 4,
            "Kr", "Krypton", "#83.798", 18, 4,
            "Rb", "Rubidium", "#85.4678", 1, 5,
            "Sr", "Strontium", "#87.62", 2, 5,
            "Y", "Yttrium", "88.90585", 3, 5,
            "Zr", "Zirconium", "#91.224", 4, 5,
            "Nb", "Niobium", "92.90628", 5, 5,
            "Mo", "Molybdenum", "#95.96", 6, 5,
            "Tc", "Technetium", "(98)", 7, 5,
            "Ru", "Ruthenium", "#101.07", 8, 5,
            "Rh", "Rhodium", "#102.9055", 9, 5,
            "Pd", "Palladium", "#106.42", 10, 5,
            "Ag", "Silver", "#107.8682", 11, 5,
            "Cd", "Cadmium", "#112.411", 12, 5,
            "In", "Indium", "#114.818", 13, 5,
            "Sn", "Tin", "#118.71", 14, 5,
            "Sb", "Antimony", "#121.76", 15, 5,
            "Te", "Tellurium", "127.6", 16, 5,
            "I", "Iodine", "126.90447", 17, 5,
            "Xe", "Xenon", "#131.293", 18, 5,
            "Cs", "Caesium", "#132.9054", 1, 6,
            "Ba", "Barium", "#132.9054", 2, 6,
            "La", "Lanthanum", "138.90547", 4, 9,
            "Ce", "Cerium", "#140.116", 5, 9,
            "Pr", "Praseodymium", "140.90765", 6, 9,
            "Nd", "Neodymium", "#144.242", 7, 9,
            "Pm", "Promethium", "(145)", 8, 9,
            "Sm", "Samarium", "#150.36", 9, 9,
            "Eu", "Europium", "#151.964", 10, 9,
            "Gd", "Gadolinium", "#157.25", 11, 9,
            "Tb", "Terbium", "158.92535", 12, 9,
            "Dy", "Dysprosium", "162.5", 13, 9,
            "Ho", "Holmium", "164.93032", 14, 9,
            "Er", "Erbium", "#167.259", 15, 9,
            "Tm", "Thulium", "168.93421", 16, 9,
            "Yb", "Ytterbium", "#173.054", 17, 9,
            "Lu", "Lutetium", "#174.9668", 18, 9,
            "Hf", "Hafnium", "#178.49", 4, 6,
            "Ta", "Tantalum", "180.94788", 5, 6,
            "W", "Tungsten", "#183.84", 6, 6,
            "Re", "Rhenium", "#186.207", 7, 6,
            "Os", "Osmium", "#190.23", 8, 6,
            "Ir", "Iridium", "#192.217", 9, 6,
            "Pt", "Platinum", "#195.084", 10, 6,
            "Au", "Gold", "196.966569", 11, 6,
            "Hg", "Mercury", "#200.59", 12, 6,
            "Tl", "Thallium", "#204.3833", 13, 6,
            "Pb", "Lead", "207.2", 14, 6,
            "Bi", "Bismuth", "#208.9804", 15, 6,
            "Po", "Polonium", "(209)", 16, 6,
            "At", "Astatine", "(210)", 17, 6,
            "Rn", "Radon", "(222)", 18, 6,
            "Fr", "Francium", "(223)", 1, 7,
            "Ra", "Radium", "(226)", 2, 7,
            "Ac", "Actinium", "(227)", 4, 10,
            "Th", "Thorium", "232.03806", 5, 10,
            "Pa", "Protactinium", "#231.0588", 6, 10,
            "U", "Uranium", "238.02891", 7, 10,
            "Np", "Neptunium", "(237)", 8, 10,
            "Pu", "Plutonium", "(244)", 9, 10,
            "Am", "Americium", "(243)", 10, 10,
            "Cm", "Curium", "(247)", 11, 10,
            "Bk", "Berkelium", "(247)", 12, 10,
            "Cf", "Californium", "(251)", 13, 10,
            "Es", "Einstenium", "(252)", 14, 10,
            "Fm", "Fermium", "(257)", 15, 10,
            "Md", "Mendelevium", "(258)", 16, 10,
            "No", "Nobelium", "(259)", 17, 10,
            "Lr", "Lawrencium", "(262)", 18, 10,
            "Rf", "Rutherfordium", "(267)", 4, 7,
            "Db", "Dubnium", "(268)", 5, 7,
            "Sg", "Seaborgium", "(271)", 6, 7,
            "Bh", "Bohrium", "(272)", 7, 7,
            "Hs", "Hassium", "(270)", 8, 7,
            "Mt", "Meitnerium", "(276)", 9, 7,
            "Ds", "Darmstadium", "(281)", 10, 7,
            "Rg", "Roentgenium", "(280)", 11, 7,
            "Cn", "Copernicium", "(285)", 12, 7,
            "Uut", "Unutrium", "(284)", 13, 7,
            "Fl", "Flerovium", "(289)", 14, 7,
            "Uup", "Ununpentium", "(288)", 15, 7,
            "Lv", "Livermorium", "(293)", 16, 7,
            "Uus", "Ununseptium", "(294)", 17, 7,
            "Uuo", "Ununoctium", "(294)", 18, 7
        ];

        var camera, scene, renderer;
        var controls;

        var objects = [];
        var targets = {table: [], sphere: [], helix: [], grid: []};

        init();
        animate();

        function init() {

            camera = new THREE.PerspectiveCamera(40, window.innerWidth / window.innerHeight, 1, 10000);
            camera.position.z = 3000;

            scene = new THREE.Scene();

            // table

            for (var i = 0; i < table.length; i += 5) {

                var element = document.createElement('div');
                element.className = 'element';
                element.style.backgroundColor = 'rgba(0,127,127,' + (Math.random() * 0.5 + 0.25) + ')';

                var number = document.createElement('div');
                number.className = 'number';
                number.textContent = (i / 5) + 1;
                element.appendChild(number);

                var symbol = document.createElement('div');
                symbol.className = 'symbol';
                symbol.textContent = table[i];
                element.appendChild(symbol);

                var details = document.createElement('div');
                details.className = 'details';
                details.innerHTML = table[i + 1] + '<br>' + table[i + 2];
                element.appendChild(details);

                var object = new THREE.CSS3DObject(element);
                object.position.x = Math.random() * 4000 - 2000;
                object.position.y = Math.random() * 4000 - 2000;
                object.position.z = Math.random() * 4000 - 2000;
                scene.add(object);

                objects.push(object);

                //

                var object = new THREE.Object3D();
                object.position.x = (table[i + 3] * 140) - 1330;
                object.position.y = -(table[i + 4] * 180) + 990;

                targets.table.push(object);

            }

            // sphere

            var vector = new THREE.Vector3();

            for (var i = 0, l = objects.length; i < l; i++) {

                var phi = Math.acos(-1 + (2 * i) / l);
                var theta = Math.sqrt(l * Math.PI) * phi;

                var object = new THREE.Object3D();

                object.position.x = 800 * Math.cos(theta) * Math.sin(phi);
                object.position.y = 800 * Math.sin(theta) * Math.sin(phi);
                object.position.z = 800 * Math.cos(phi);

                vector.copy(object.position).multiplyScalar(2);

                object.lookAt(vector);

                targets.sphere.push(object);

            }

            // helix

            var vector = new THREE.Vector3();

            for (var i = 0, l = objects.length; i < l; i++) {

                var phi = i * 0.175 + Math.PI;

                var object = new THREE.Object3D();

                object.position.x = 900 * Math.sin(phi);
                object.position.y = -(i * 8) + 450;
                object.position.z = 900 * Math.cos(phi);

                vector.x = object.position.x * 2;
                vector.y = object.position.y;
                vector.z = object.position.z * 2;

                object.lookAt(vector);

                targets.helix.push(object);

            }

            // grid

            for (var i = 0; i < objects.length; i++) {

                var object = new THREE.Object3D();

                object.position.x = ((i % 5) * 400) - 800;
                object.position.y = (-(Math.floor(i / 5) % 5) * 400) + 800;
                object.position.z = (Math.floor(i / 25)) * 1000 - 2000;

                targets.grid.push(object);

            }

            //

            renderer = new THREE.CSS3DRenderer();
            renderer.setSize(window.innerWidth, window.innerHeight);
            renderer.domElement.style.position = 'absolute';
            document.getElementById('container').appendChild(renderer.domElement);

            //

            controls = new THREE.TrackballControls(camera, renderer.domElement);
            controls.rotateSpeed = 0.5;
            controls.minDistance = 500;
            controls.maxDistance = 6000;
            controls.addEventListener('change', render);

            var button = document.getElementById('table');
            button.addEventListener('click', function (event) {

                transform(targets.table, 2000);

            }, false);

            var button = document.getElementById('sphere');
            button.addEventListener('click', function (event) {

                transform(targets.sphere, 2000);

            }, false);

            var button = document.getElementById('helix');
            button.addEventListener('click', function (event) {

                transform(targets.helix, 2000);

            }, false);

            var button = document.getElementById('grid');
            button.addEventListener('click', function (event) {

                transform(targets.grid, 2000);

            }, false);
            //初始化 以球面
            transform(targets.sphere, 5000);

            //

            window.addEventListener('resize', onWindowResize, false);

        }

        function transform(targets, duration) {

            TWEEN.removeAll();

            for (var i = 0; i < objects.length; i++) {

                var object = objects[i];
                var target = targets[i];

                new TWEEN.Tween(object.position)
                    .to({
                        x: target.position.x,
                        y: target.position.y,
                        z: target.position.z
                    }, Math.random() * duration + duration)
                    .easing(TWEEN.Easing.Exponential.InOut)
                    .start();

                new TWEEN.Tween(object.rotation)
                    .to({
                        x: target.rotation.x,
                        y: target.rotation.y,
                        z: target.rotation.z
                    }, Math.random() * duration + duration)
                    .easing(TWEEN.Easing.Exponential.InOut)
                    .start();

            }

            new TWEEN.Tween(this)
                .to({}, duration * 2)
                .onUpdate(render)
                .start();

        }

        function onWindowResize() {

            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();

            renderer.setSize(window.innerWidth, window.innerHeight);

            render();

        }

        function animate() {

            requestAnimationFrame(animate);

            TWEEN.update();

            controls.update();

        }

        function render() {

            renderer.render(scene, camera);

        }

    </script>
{% endblock %}